MONTANA: “The League of Conservation Voters (LCV) said Monday it had nothing to do with a $500,000 TV spot that advocated for Libertarian candidate Dan Cox,” The Hill writes. “The advertisement slams GOP candidate Rep. Denny Rehberg, who is challenging Tester.” More: “ ‘We've only supported Montana Hunters and Anglers to do work supporting Tester or opposing Rehberg, and we obviously don't support Cox. We've never given Montana Hunters and Anglers a dime to run any TV ads supporting anyone other than Tester. So nothing really to say about this specific ad,’ LCV spokesman Jeff Gohringer told The Hill in a Monday email.”

PENNSYLVANIA: “National Republicans are spending $500,000 on the Pennsylvania Senate race as polls show a closer contest between Democratic Sen. Bob Casey and Republican Tom Smith, a wealthy tea party candidate who has invested more than $16 million into his bid,” the Washington Post wrote.